AirHint found the following cheapest return flights from Geneva (GVA) to Montreal (YUL) in September 2025 (see full year).

Return flights

11 Sep - 19 Sep	Air Canada
25 Sep - 30 Sep	Lufthansa
21 Sep - 02 Oct	Air Canada
25 Sep - 29 Sep	Lufthansa
10 Sep - 16 Sep	Air Canada
27 Sep - 04 Oct	Air Canada
16 Sep - 25 Sep	Lufthansa
27 Sep - 02 Oct	Air Canada
16 Sep - 28 Sep	Air Canada
19 Sep - 22 Sep	Air Canada
23 Sep - 30 Sep	Air Canada
24 Sep - 30 Sep	Air Canada
03 Sep - 21 Sep	Austrian Airlines
12 Sep - 01 Oct	Air Canada
24 Sep - 01 Oct	Air Canada
24 Sep - 09 Oct	Lufthansa
27 Sep - 07 Oct	Austrian Airlines
13 Sep - 07 Oct	Austrian Airlines
21 Sep - 05 Oct	Lufthansa
28 Sep - 05 Oct	Austrian Airlines

Also check the deals for one-way flights from Geneva to Montreal in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Geneva to Montreal in September from 404€

Return flights